am·​i·​an·​thus | \ ˌamēˈan(t)thəs \
variants: or amiantus \ -​ntəs \
plural -es

Definition of amianthus

: fine silky asbestos

Love words?

You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.

Start your free trial today and get unlimited access to America's largest dictionary, with:

  • More than 250,000 words that aren't in our free dictionary
  • Expanded definitions, etymologies, and usage notes
  • Advanced search features
  • Ad free!

First Known Use of amianthus

1607, in the meaning defined above

History and Etymology for amianthus

Latin amiantus, from Greek amiantos, from amiantos unpolluted, pure, from a- a- entry 2 + -miantos (from miainein to pollute)

Keep scrolling for more

Learn More about amianthus

Time Traveler for amianthus

Time Traveler

The first known use of amianthus was in 1607

See more words from the same year

Statistics for amianthus

Cite this Entry

“Amianthus.” Dictionary, Merriam-Webster, Accessed 10 Jul. 2020.

Comments on amianthus

What made you want to look up amianthus? Please tell us where you read or heard it (including the quote, if possible).


See Definitions and Examples »

Get Word of the Day daily email!

Test Your Vocabulary

Words for Summer: A Quiz

  • a closeup of a sunflower
  • Which of the following words means “of or relating to summer”?
Spell It

Can you spell these 10 commonly misspelled words?

Dictionary Devil

Test Your Knowledge - and learn some interesting things along the way.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!